Effect of ß-Cholanic acid and ph on stability of water-in-model oil emulsions (Record no. 180833)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02077nam a2200205 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s xxu |
| 082 ## - CLASIFICACIÓN DEWEY | |
| Número de clasificación | CD I116 43 0014775 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Merino, Jerónimo |
| 9 (RLIN) | 49416 |
| 111 2# - AUTORIDAD DE CONGRESO | |
| Nombre de congreso | Congreso de Producción (3er : 2006 sept. 19 al 22 : Mendoza) |
| 9 (RLIN) | 37249 |
| 245 00 - TITULO | |
| Título | Effect of ß-Cholanic acid and ph on stability of water-in-model oil emulsions |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Nombre de publicador, distribuidor, etc. | Instituto Argentino del Petróleo y del Gas, IAPG |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 14/06/2012 ; 24/11/2006 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 13 p. |
| 520 ## - RESUMEN, ETC | |
| Resumen | Asphaltenes fractionated from Hondo Crude Oil (a heavy crude from off-shore California) were dissolved in mixtures of toluene and heptane to create model oils. The emulsion stability of water-in-model oils was investigated over a range of pH. High pH (around 12) gave rise to water-in- oil emulsions with very high stability. However, the addition of 5-ß -Cholanic Acid (ß -CA), a carboxylic acid very similar to naphthenic acids found in petroleum fluids, to the model oil reduced dramatically the emulsion stability. This effect was more significant at higher pH (pH 12). Moreover, the amount of ß -CA that destabilized the water-in-oil emulsion at pH 12 was around 500 ppm. These results suggested that the presence of ß -Cholanic Acid or other naphthenic acids with similar structure could prevent the formation of stable W/O emulsions. With this in mind, water-in-petroleum emulsions were prepared in order to study the addition of ß -CA to different whole crude oils and evaluate the stability of the emulsion formed at high pH. The results from the later study were very satisfactory and demonstrate that carboxylic acids with a similar molecular structure to ß -CA (that is, a carboxylic acid for which its hydrophobic moiety is largely aliphatic) could break asphaltenic-film-stabilized emulsions. |
| 650 #0 - MATERIA | |
| Término tópico | Emulsiones petróleo - agua |
| 9 (RLIN) | 1614 |
| 856 ## - LINK | |
| Link | <a href="https://biblioteca.iapg.org.ar/cgi-bin/koha/opac-retrieve-file.pl?id=4df2fddbcf3c8fe8d2367067719ca2f8">https://biblioteca.iapg.org.ar/cgi-bin/koha/opac-retrieve-file.pl?id=4df2fddbcf3c8fe8d2367067719ca2f8</a> |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Congresos (trabajos presentados) |
| Biblioteca propietaria | Biblioteca actual | Ubicación | Fecha de adquisición | Inventario | Total de préstamos | Signatura topográfica | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|---|---|
| Colección Digital IAPG | Colección Digital IAPG | CD I116 43 0014775 | 05/03/2026 | 200040534 | CD I116 43 0014775 | 200040534 | 05/03/2026 | Congresos (trabajos presentados) |
